valve
My blogs
| Gender | Female |
|---|---|
| Location | Shunde, Guangdong, China |
| Introduction | (http://www.valve-type.blogspot.com) A valve is a mechanism which changes the length of the tube, or body of a wind instrument; it allows you to play a wider range of notes. A piston valve features a that moves up and down in a casing; a rotary valve changes the air passage by means of a rotor activated by a lever. in the blog we will introduce many different types of valves to you. the basic valve types can be divided into two general groups: stop valves and check valves. |
| Interests | Playing photoshop,Shopping, Playing computer,Singing and junketing! |
| Favorite movies | science fiction,dracula movie... |
| Favorite music | ballad,POP... |
| Favorite books | sci-fi,horror fiction... |